Rafael Ferreira is concluding the M.Sc. thesis in Power Systems Engineering at UFRJ and works as a project manager at PSR, Rio de Janeiro, Brazil. His activities at PSR include studies in the following areas: (i) integrated power generation and transmission operation in hydrothermal systems; (ii) transmission and distribution expansion planning, with focus on uncertainty modeling and risk assessment; (iii) transmission system cost allocation; (iii) transmission congestion management and energy pricing; (iv) grid connection of renewable energy generators and other distributed generation resources; and (v) technical, economic and regulatory analysis of smart grid projects.